diff --git a/src/runtime/kwalletd/main.cpp b/src/runtime/kwalletd/main.cpp
--- a/src/runtime/kwalletd/main.cpp
+++ b/src/runtime/kwalletd/main.cpp
@@ -169,6 +169,7 @@
 #endif
 
     QApplication app(argc, argv);
+    app.setAttribute(Qt::AA_UseHighDpiPixmaps, true);
     // this kwalletd5 program should be able to start with KDE4's kwalletd
     // using kwalletd name would prevent KDBusService unique instance to initialize
     // so we setApplicationName("kwalletd5")